5598-13-0

Chlorpyrifos-methyl is a general use organophosphate insecticide registered in 1985. It is used for the control of stored grain pests, weevils, moths, borers, beetles and mealworms, red fl our beetle, grain moth, for seed treatment. It is effective against rice stem borer, aphids, cutworms, plant and leaf hoppers, mole crickets, moths and stored grain pests. It is poorly soluble in water, moderately soluble in hexane and alcohols, and readily soluble in other organic solvents, such as acetone, benzene, and chloroform

Colorless crystals. Corrosive to copper, brass, iron, and tin plate. Used as an insecticide.

A chlorinated organophosphate derivative. Organophosphates are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides. CHLORPYRIFOS METHYL(5598-13-0) is incompatible with strong acids and bases.

Hydrolyzed by strong acid and base.

Exposures to chlorpyrifos-methyl cause excessive salivation, sweating, rhinorrhea and tearing, muscle twitching, blurred vision/dark vision, slurred speech, weakness, tremor, incoordination, headache, dizziness, nausea, vomiting, abdominal cramps, diarrhea, respiratory depression, tightness in chest, wheezing, productive cough, fl uid in lungs, and pin-point pupils. In cases of severe exposure and poisoning, chlorpyrifos-methyl causes seizures, incontinence, respiratory depression, loss of consciousness, respiratory paralysis, and death. Exposures to chlorpyrifos-methyl cause cholinesterase inhibition in workers, and the systemic toxicity includes body weight loss, decreased food consumption, and liver, kidney, and adrenal pathology

Chlorpyrifos-methyl is a general use organophosphate insecticide for use on stored grain (for protection of stored food, feed oil, and seed grains against injury from stored grain weevils, moths, borers, beetles, and mealworms including granary weevil, rice weevil, red flour beetle, confused flour beetle, saw-toothed grain beetle, Indian meal moth, and Angoumois grain moth, lessor grain borers), seed treatment, grain bin, and warehouse.

Treatment for organophosphate poisoning consists of thorough decontamination, cardiorespiratory support, and administration of the antidotes atropine and pralidoxime. In cases of severe poisoning, diazepam, an anticonvulsant, should also be administered. Antidotes should be administered as prevention even if the diagnosis is in doubt. Speed in removing material from eyes and skin is of extreme importance. Eyes: Eye contact can cause dangerous amounts of these chemicals to be quickly absorbed through the mucous membrane into the bloodstream. Immediately and gently flush eyes with plenty of warm or cold water (NO hot water) for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. Skin: Get medical aid. Dermal contact can cause dangerous amounts of these chemicals to be absorbed into the bloodstream. Wearing the appropriate PPE equipment and respirator for organophosphate/carbamate pesticides, immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Shampoo hair promptly if contaminated. The removed, contaminated clothing and shoes should be double-bagged and left in Hot Zone for later disposal by hazardous materials experts. Skin may also be decontaminated with diluted hypochlorite solution. Inhalation: Get medical aid. Do not contaminate yourself. Wearing the appropriate PPE equipment and respirator for organophosphate pesticides, immediately remove the victim from the contaminated area to fresh air. If the victim is not breathing, administer artificial respiration. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. If breathing is difficult, administer oxygen through bag/mask apparatus until medical help arrives. Do not leave victim unattended. Ingestion: Call poison control. Loosen all clothing. Never give anything by mouth to an unconscious person. If victim is unconscious or having convulsions, do nothing except keep victim warm. Get medical aid. Transfer promptly to a medical facility. In cases of ingestion, do not induce vomiting. If the victim is alert and asymptomatic, administer a slurry of activated charcoal at a dose of 1 g/kg (infant, child, and adult dose). A soda can and straw may be of assistance when offering charcoal to a child. In some cases you may be specifically instructed by poison control to induce vomiting by way of 2 tablespoons of syrup of ipecac (adult) washed down with a cup of water. Do NOT give activated charcoal before or with ipecac syrup.

UN2783 Organophosphorus pesticides, solid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials. UN3018 Organophosphorus pesticides, liquid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.

Strong oxidizers, strong acids, and alkalies. In the presence of strong reducing agents such as hydrides, organophosphates form highly toxic and flammable phosphine gas. Contact with oxidizers can cause the release of toxic oxides of phosphorus. Corrosive to copper, brass, iron, and tin plate.

This compound is 50% hydrolyzed in aqueous methanol solution @ pH 6 in 1930 days; and in 7.2 days at pH 9.96. Spray mixtures of <1% concentration are destroyed with an excess of 5.25% sodium hypochlorite in ,30 minutes @ 100°C; and in 24 hours @ 30°C. Concentrated (61.5%) mixtures are essentially destroyed by treatment with 100:1 volumes of the above sodium hypochlorite solution and steam in 10 minutes. Containers must be disposed of properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office

Chlorpyriphos-methyl is an derivative of Chlorpyrifos (C425300), an insecticide that acts on the nervous system of insects by inhibiting acetylcholinesterase.

ChEBI: An organic thiophosphate that is O,O-dimethyl hydrogen phosphorothioate in which the hydrogen of the hydroxy group has been replaced by a 3,5,6-trichloropyridin-2-yl group.

Insecticide: Chlorpyrifos-methyl is used on stored grain (for protection of stored food, feed oil, and seed grains against injury from stored grain weevils, moths, borers, beetles and mealworms including granary weevil, rice weevil, red flour beetle, confused flour beetle, saw-toothed grain beetle, Indian meal moth, and Angoumois grain moth, lessor grain borers), seed treatment, grain bin and warehouse. [14] In 2000, the registrants of chlorpyrifos-methyl requested voluntary cancellation of their products rather than committing to develop additional data for reregistration

DOWCO-217®; NOLTRAN®; RELDAN®; RELDANE® , STORCIDE®; ZERTELL®